About half the states have a state guard. The organizational structure is military-ish, but we don't have weapons. We wear essentially the same uniform as the national guard, and sometimes work with them, but it's not related to the national guard except that we both report to the governor. The difference is the state guard ONLY reports to the governor and doesn't have any federal connection.
Since I joined I've helped run a shelter after hurricane Harvey and run water distribution centers after the freeze 2 years ago. But most of the time I just do the same thing I do at my regular job.
When I joined they needed programmers. They need everybody, tbh. It's not hard to qualify.